Shore



F. F. SINKS Dec. 1, 1925- SHORE Fed Oct. 20. 1924 jy?. e.

ATTORNEY Fay'. l.

Patented Dec. 1,l 1925.

PATENT `rica.

FRANK F. SIN'ZKS,- 0F SEATTLE, WASHINGTON.

SHORE.

Applicationilled `October 20, 1924. Serial No. 744,841.

To all 'whom it may concern.'

Be it known that I, FRANK F. SINxs, a citizen of the United States.residing, at Seattle. in the county of King and State of Washington,have invented certain new and useful Improvements in Shores, of whichthe following is a specification.

This invention relates to shores designed, more especially, for use insupporting concrete receiving moldsl or forms in theconstruction ofreinforced concrete floors.

The object of the invention is the provision of a shore havingextensible characteristics, which is of strong and durablel con#justable to selected lengths.l v

More specific objects and advantages of the invention wi-llappear in thefollowing specification. f

The invention consists in the novel construction, adaptation andcombination of parts, a' detailed description ofthe preferred embodimentof the same will be hereinafter given in connection with theaccompanying drawing, in which,-

Figure 1 is a front elevational view showing a shore embodying myinvention applied in connection with a beam portion of a concrete floor.Fig.`2 is a side elevation applied in connection with a ioorslab-portion. Fig. 3 is a detail vertical section to an enlarged scaletaken substantially on line 3 3 of Y Fig. 2. Fig. 4 is a horizontalsection on line 4 4 o f Fig. 3. Fig. 5 is a vertical'section on line5--5 of Fig. 4. f

A. concrete licor construction is usually formed with beams, such as 10in Fig. 1, and slab elements, such as 11 in Fig. 2,- from plasticconcrete and suitable reinforcing devices, not shown, within suitablemolds as indicated by 12 and 13. A. l

Hitherto, such molds have been supported by wooden props cut to lengthssomewhat less than the height of the molds above a support as the fioor14 nextbelow.

A- block or piece of timber. such as 15 or 16, is desirably placed uponthe upper end of the prop to afford a relatively large bearing'againstthe mold and, finally, lWedge struction, .convenient to use, andreadily adblocks are forced under the lower end of 5@ the prop vtoelevate the latter into `to support the mold.

-My invention overcomes obections to the shoring means above referred toby providing a shoreI extensible in itself adapting it to be used timeafter time, and eliminating waste Aof material and lessening the expenseof labor in applying.

According to thel present invention, a shore comprises two members 17and 18, 6cpreferablyof wood, which are slidably con nected together forrelative telescopic movement.

The lower member 17, or standard, conposition sists of a single pieceadapted to slidably lit 6a between longitudinal parallel spaced companion pieces`181 and 182 .of the upper memer 18, or extension, as itwill be hereinafter termed.-`

The longitudinal pieces 181 and 182 are 7o held in their spacedrelations by being rigidly secured adjacent their upper ends tointerposed blocks 20 and 21, and adjacent their lower ends by means ofplates 22 secured to the front and rear surfaces .of said pieces and byreinforcing straps 23. VProvided in said extension pieces 181 and 182 atopposite sides of the channel 19 are pairs of axially aligned sockets24, said pairs of socketsbeing spaced apart longitudinally of theextension as, for example, five or six inches center to center. Y

Mounted upon the upper end of the standard 17 and secured thereto as bymeans of screws 25 is a metal cap 26 having a cen- 85 trally disposedaperture which is tapped to receive the screw threads ,of a verticallydisposed jack screw 27 whose lower end is accommodated by a cavity 28provided in the standard17. Above its screw vthreaded portion, said jackscrew is provided with a wrench-engageable polygonal portion 29 andthereabo've the jack screw is provided with a cylindrical end 30 whichextends into a recess provided in the under side of a metal body 31,hereinafter designated as the carrier. 32 represents a screw threadedbolt. hasing ahead positioned, as shown in Fig; 3,

therefrom axially of the jack screw to con-- in a recess 33 of thecarrier and extending nect the latter to the carrier against separation.

The connection above explained of the carrier to the jack screw permitsthe latter to be rotated to effect the raising and the lowering of thecarrier with respect to said standard.

The carrier is provided with lugs 34 arranged as best shown in Fig.4flto serve as guides with respect to the extension side pieces 181 an-d182, and cooperate with the plates 22, which also serve as guides, formaintaining the extension 18 in axial alignment with the standard 17.

Said carrier is provided with a transversely arranged bore 35 for thereception of complementary coupling pins 36 which are engageable in a,yselected pair of sockets 24 to unite the carrier 31 to the extension 18for conjoint longitudinal movement with relation to the standard 17 whenthe jack screw is rotated; .y

The pins 36 are moved into engaging relation with the extension sockets24 or retracted therefrom by suitable controlling means, said means asillustrated consisting of wire attachments 37 extending radially of therespective pins through slots 38 of the carrier into positions to beconveniently manipulated by the operator.

The outer end of each slot 38 terminates advantageously in a laterallydisposed portion 39 (Fig. 4) into which the wires 37 are brought when itis desired to secure the pins against accidental disengagement with theextension member.

For use, ashore is first regulated to a length approximating but shorterthan requisite for a ,specific application, such regulation beingaccomplished by the operator slidably moving the extension 18 untilsuitably located sockets 24 are brought into position to register withthe carrier pins 36 which are thereupon protruded to engage within suchsoc-k'ets. This primary regulation is best eil'ected when the shore isin a substantially vertical position.

After being thus regulated the jack screw 27 is rotated by means of asuitable wrench or instrument (not shown) t-o act through the medium ofthe carrier to cause the extension to be elevated yinto engagingrelation with the work.

In practice cleats or stays, such as indicated by dotted lines 40 and 41in Figs. 1 and 2, are desirably nailed to a shore and also to the moldbearing timbers 15' and 16 above mentioned to obviate any accidental vdislodgment of the shore.

As changes may be made in the above described specifc embodiment, withinthe scope of the appended claims, without departing from the Spiritthereof, it is intended that the matter contained in the specificationand drawing shall be considered as illustrative only of the preferredconstruction.

What I claim, is,-

1. A shore of the character described having in combination a standard,an extension having a channel therein to receive said standard forrelative longitudinal move ment, a cap secured upon an end of .saidstandard, said cap being provided with a screw threaded aperture, ascrew engaging in the threads of said cap aperture, a carrier mountedupon said screw, and means provided upon said carrier and engageable insaid extension for coupling the latter with said extension.

2. A shore of the character described having in combination, a standard,a screw operatively connected'to an end thereof, an extension having achannel therein to receive the standard for relative sliding movement,said extensionbeing provided at o posite sides of its channel with lonitudinally spaced sockets, a carrier mounte upon an end of said screw,and retractile devices provided in the carrier and engageable in saidsockets selectively for coupling the carrier with said extension.

3. In a shore of the character described, a standard, an extensionconnected to the standard for relative longitudinal movement, saidextension being provided with longitudinally spaced pairs of sockets, acarrier slidably connected to said extension, means carried by saidcarrier for couplin 4the latter to said extension at predeterminepositions longitudinally thereof, and screw devices operativelyconnected to the standard and to the carrier for effecting longitudinaladjustments ,to the extension with respect to the standard. t

4. A shore of the character described, comprising a standard, a capsecured thereto, said cap being lprovided with a screw threadedaperture, an extension having a channel to receive said standard forrelative longitudinal movement, pairs of complemenspaced relatively ixedmembers, whereby a l channel is formed between the members, m whichchannel the standard is slidably received, the members having opposedspaced sockets, the standard having athreaded bore l 1,568,583 i B inits end received beta6-'reen the members, a. end received-between themembers a screw l screw enga in the bore in the standard, engaging inthe bore in the standard and a carrier revo ubly mounted on the screw,ad1ustable len hwise of the standard, 'a the carrier having a transversebore, and a. carrier mounte on the screw, and is car- 15 pair of pin'sin the bore .arranged for selecried b the carrier for projectionliterally` tive engagemenft in opposed sockets inthe from t e carrier,the membershaving pairs spaced members. of opposed sockets for receivingthe pins.

6. In la shore, the combmation of a. pair Signed at Seattle, Washington,thls 16th `of members fixedy to 'one antther in lspaced day ofSeptember, 1924,

relation, a standard slidable between the ."members, me mnaardhaving abore at its F. sINKs.

